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Hi, This is likely an stupid question, but I cannot find the solution. I am searching for an "exit" function, to end the execution of an R script if some condition is not filled. Any clue? Thank you in advance! Federico

Dear all, I have a problem that may be someone of you can help. I am a newbie and do not find how to do it in manuals. I have two arrays, for example: ar1 <- array(data=c(1:16),dim=c(4,4)) ar2 <- array(data=c(1:16),dim=c(4,4)) colnames(ar1)<-c("A","B","D","E") colnames(ar2)<-c("C","A","E","B") > ar1

Hello, it might be a very simple question but I cannot find the solution (I tried a || b, any(a,b)... but none works). My problem is: I have two vectors, a <- c(TRUE,FALSE,FALSE) b <- c(TRUE,FALSE,TRUE) and I would like to obtain a vector that indicates if it is TRUE in any of the two vectors. Hence, the desired output would be: TRUE, FALSE, TRUE Thank you in advance, Federico

Hi, I am investigating a problem for which I found no solution. I have a matrix with two columns. I have plotted it as an x-y plot (plot(matrix[,1],matrix[,2]) But this is not apropriate for my purposes. I need to group the data in matrix[,1] into groups (as an histogram would do). Then I have to calculate the average of matrix[,2] for each group. Before starting with loops and loops I

Dear members of the list, it is likely a stupid question but I cannot find the information neither in R manuals nor in google. I am generating a plot (from hclust results) but I cannot see properly the labels because the default font size is too large. How can I change it? Thanks! Federico

...1<-c(0,0,0,15) specieslat2<-c(10,12,0,0) specieslat3<-c(10,12,13,15) data.frame(cbind(grid.id,lat,specieslat1,specieslat2,specieslat3)) ? Thanks a lot, cheers Christian -- Christian Hof .. PhD student Biodiversity & Global Change Lab .. C/Jos? Guti?rrez Abascal, 2 Museo Nacional de Ciencias Naturales .. E-28006 Madrid (Espa?a) www.biochange-lab.eu Center for Macroecology .. University of Copenhagen www.macroecology.ku.dk mobile ES .....

Estimated people, I have two matrices: ar1 <- array(data=c(1:16),dim=c(4,4)) ar2 <- array(data=c(1,2,3,3,5:16),dim=c(4,4)) They only differ in the fourth row. I would like to compare them in order to know which columns are equal. The following works, but I would like to have a better solution, and not to use what someone called "prehistorical loops": for(i in

HI I would like to know how can I mount the equivalent to the Active Directory on linux, and how can I autenticate the Machines with Debian 7 with a Zentyal server.... Greetings Yorlan -- ----------------------------------- CONSULTE la Revista de Ciencias Medicas de Pinar del Rio en Internet www.revcmpinar.sld.cu -- Este mensaje le ha llegado mediante el servicio de correo electronico que